Controlled burns got a little out of control in Denver last week. A 150 acre prescribed burn at the Rocky Mountain Arsenal National Wildlife Refuge was whipped up by a dust devil and fueled by a torrent of tumbleweeds. The whirlwind of tumbleweeds reached up 200 feet into the air from the Uvalda irrigation ditch at the refuge. The fire crossed the control line but was quickly contained and extinguished. The spot fire only burned about one additional acre thanks to quick action from U.S. Fish and Wildlife Service, U.S. Forest Service, South Metro, Denver, Fairmount, and West Metro Fire Departments.
There is also a longer and higher resolution video with no sound of the event.